Dumping oak



C. A. GRIFFITH. DUMPING CAR.

APPLICATION FILED MN. l. 192|.

Patented Aug. 22, 1922.

"Ji M2# @am @KM Leraar OFFICE.

CHARLES A. GRIFFITH, .OIF KNOXVILLE, TENNESSEE.

nurafrrirs can.

y Speccaton of Letters Patented Aug', 22,1922,

Application filed January 11, 1921;- Serial No. 436,448.

To all Lo/1,0m t may concern Be it known that I, CHARLES A. GRIFFITH, a citizen of the United tates-,- residing at Knoxville, in the county yof Knox and State of rJ'ennessee, have invented a new and useful Improvement iii-DumpingV Cars,- of which the following is a specification, reference being hadl to the accompanying drawing. I 1 f My improvement relates particularly to y ydumping cars of the type shown in my United States Patent No. ,1,268,34'dated June e, i918, and in Patent No. 1,268,390 granted .lune a, i918 to Hugh WV. Sanford. The object of the improvement is to provide a car with bottom doors adapted to open and close in substantially the same way as that shown in the aforesaidpatents but to provide'difterent means of locking the doors in their closedv positions whereby the doors may remain entirely underv the axles ofthe ca'r. v 1

The invention relates to the doors which form thel bottom of the ear and the means for locking the doors in the closed position.

In the accompanyingdrawings:

Figure l is an upright longitudinal sec-l tion showing the car in engagement vwith the means for raising the bottom doors.

Figure 2' isa perspective view of the means for locking the doors closed. Y Figure 3 isa perspective view of a slightly modified form.`

Referring to said drawings: A A are track rails resting on ties A1. `B B are or vdinary car wheels applied to the ends of '1 axles C C. D is the body of the car. D1 is the side beam forming a portion of the car, the ends of which are joined to and stayed by the bumpers D2 and the end walls D3 of the body.

The end of the carat the right, asy viewed in the drawings, is the forward end of the car and'it is to be understood that the car moves forward for dumping and for closing the doors after the load has been discharged from the ear. The discharge is downward between the rails A, and the place at which the discharge is effected is called the dumping station. Eeneath thc rails A the material discharged'from the car may be received by a chute or another car or any other suitable device, not shown.

Three doors, E, El and E2, are placed in series to form the bottom of the car. rlhe present invention relates to the manner in which the two doors E and Elare locked in closed position. Thethird or left hand door i12 may if desired, be locked in. posi.- tion in identically the same manner asthat shown in thek aforesaid patents. In said patents it will be noticed that the iirstftwo doors are movedi upwardly so that theiry :tree ends are above the axles C and are supported bythe hinged part ofr the succeeding door. ln the present inventionl provide an altogether ydifferent locking de.- vice which enables me to lock the door in itsl` closed position without the necessity of the door projecting above the aXles C of the adjacent door whereby a. longer door may be employed. To accomplish. this, the free end of each door extends'under the axle of the adjacent door. The. said free endsA of the doors are provided with locking means which will now be described. 'The doors E and E are providedvwith a Ahole as E which may, in the preferred embodiment', be made in a lug E4 fastened to the, bottom plate of the door, ywhile the yend of the next or following door which co-acts to, lock the tirs-t door closed, is provided witha finger as which may be riveted tofthel upper curved end of said door. There are preferably three lugs E4 and. threetingers F, one at each end and one in the center of the doors. lt will be manifestthat 'when the door having the three'iingers E turns on its aigle, ory o-n its pivot or hinge,the said 'three lingers l* of one door are withdrawn from the holes E3 in the lugs E4 of the other or first door and the latter is allowedl to drop to dump its load. After all the doors are released and the material in the car completely dumped, the car -doors F'are automatically re-set by `contact with cam member A2 in the same manner as that described in the aforesaid patents, the for# ward door being turned into the closed position and the next door being then turned into closed position, whereby the meeting edges of said doors are interlocked, and the third door being then turned into the closed position, whereby the meeting edges of the second doors are interf tial consideration :is that the `rear of the hook-formed members as G are employed in place of the lugs E4 of .Figure 2. When the. rear door is turned upward, its forward edge moves downward and enters or inter- Reliniiorcing mem?I (bers, H,`- are placed on the rear door outside."

` of theplaces which will be engaged by the locks withy the hooks, Gr.

hooks. The Jfunction of the members, H, is to. strengthen the edge of the rear door. It is to be observed that the members G and H areusedgme-rely orthe purpose of strength- Leningg the edges of the doors. If the edges of they doors ,are in themselves heavy enough :to `pr'ovdethe required rigidity, the ineinybers G" andH will not be needed. The essen- 4meeting edges of two doors be turned downi yl.".Thefcombination with ai car ward. below its hingelineand'thatthe other n of saidedges be turned upward and that one of saidV meetingedges vbe og hookiorm and that the other of said edges be formed for inter-engagement or inter-locking with said hook-forni edge. i. I e

1I claimas' my'inventiom' two i doors .having theirforward parts hinged onlines which are horizontal and transverse `to the length ofthe car body and the for- `ward of` said doors'having; itsyrear i edge "meetingtheiorward edgeof the other door, yandthe reary of said meeting edges being .turned downward below itshinge line and ftheotheiot said edges being turned upward,

andfone, of said meeting edgesbeingof hoolrl f0'rn:`ir,`;and`- lthe i otherl of said edges vl'nnng `formed for inter-locking with said hookformfedge,substantially. as described. i

2. The' combination with a car body and y axles sup-porting said` body and wheels sup` 40 i porting said. axles, of two doors one of whichv has its forward part hinged to one body, of

of said axles and the othery of which has its` i forward part hinged on a line which isparallelto saidaxle and the forward of said doors having its rear edge meeting theforof said meeting edges being :turned downward. below its hinge line and the other ol said edges being turned upward, and one 'of said meeting edges being of: hook-form, and

the other ,of saidedges being forniedwfor inter-looking with said hook-forni edge, suby i s tantially as described.

.v 3. The comb nation of a earbody,a1rles lsupporting said bodygforfrnaintaining horizontalposition and movement oi' said body,

4,5 ward edge of the other door, and the rear wheelsv carrying said axles, the rst bottom door hinged near its ,forward edge on a line which is horizontal and` transverse to the length of the car body, and havinga curved LThe comb nation `of a oar body, aXles supporting said body `'for maintaining horizontalposition and ,movement-'of said body, wheels carrying said axles, a first vbottoni door hinged near itsiforwardedge on a line whiohis horizontal and transveisefto the length of the oar body,'andfhavingfa curved looking device at itsedge having a hole therein, anda second door having a nger adapted to` enter the hole in the Curved look` vingY device of the .first door'as. saidsecond .door is swungupward on itsaXis,-substany ltially as described.

In testiv ony whereoflhavesi'gned'my` c,

name, this 8th day oi' January, vin the year onethousand ynine hundred and twenty-one. i CHARLES A.' GRIFFITH. l v 

